<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <script>
        'use strict';
        function aaa(x,y,...rest){
            console.log("x=>"+x);
            console.log("y=>"+y);
            console.log(rest);
        }
    </script>

</head>
<body>

</body>
</html>